Desorption/ionization of analytes from porous light-absorbing semiconductor
US6288390A · kind A · utility
85Cited by
15References
65Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 7, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Mar 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/164
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for desorption and ionization of an analyte from a porous, light absorbing, semiconductor is disclosed that can be used to replace conventional mass-assisted laser desorption/ionization (MALDI) in the mass spectrometry of proteins and biomolecules. The process uses the semiconductor to trap an analyte on the semiconductor. The semiconductor is illuminated by a light source and absorbs the light energy. The semiconductor then uses the light energy is to desorbed and ionize the analyte. The analyte so desorbed and ionized is suitable for detection by mass analyzers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.